Patent · US Expired

Method and device for electronic spark control in the event of the failure of the phase detector

US6662781B1 · kind B1 · utility

23Cited by

2References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Oskar Torno · Schwieberdingen, DE
Axel Heinstein · Welzheim, DE
Carsten Kluth · Stuttgart, DE
Werner Haeming · Neudenau, DE
Michael Baeuerle · Rutesheim, DE
Steffen Franke · Schwieberdingen, DE

Key dates

Filing date	Mar 15, 2002
Grant date	Dec 16, 2003
Priority date	—
Expiry date	Mar 15, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method and a device for controlling knock in response to the failure of a phase detector are described, which implement the normal, cylinder-selective knock control under the condition, that the dual ignition is not activated. If the dual ignition is activated when the phase detector fails, then the knock control is carried out, using a non-cylinder-selective measure. Such a non-cylinder-selective measure could include safety-ignition retard or knock control, using one knock-detection threshold value for all of the cylinders.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.